310 lines
9.2 KiB
PHP
310 lines
9.2 KiB
PHP
<?php defined('SYSPATH') or die('No direct access allowed.');
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/**
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* This class provides invoice item capabilities.
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*
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* @package Invoice
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* @category Models
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* @author Deon George
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* @copyright (c) 2009-2013 Open Source Billing
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* @license http://dev.osbill.net/license.html
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*/
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class Model_Invoice_Item extends ORM {
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// Relationships
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protected $_belongs_to = array(
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'invoice'=>array(),
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'module'=>array(),
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'product'=>array(),
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'service'=>array(),
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);
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protected $_has_many = array(
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'tax'=>array('model'=>'Invoice_Item_Tax','far_key'=>'id')
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);
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protected $_display_filters = array(
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'date_orig'=>array(
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array('Site::Date',array(':value')),
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),
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'date_start'=>array(
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array('Site::Date',array(':value')),
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),
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'date_stop'=>array(
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array('Site::Date',array(':value')),
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),
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'recurring_schedule'=>array(
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array('StaticList_RecurSchedule::get',array(':value')),
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),
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);
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// Items belonging to an invoice item
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protected $_sub_items_load = array(
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'tax'=>array(),
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);
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/**
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* Invoice Item Types
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*
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* @see isValid()
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*/
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private $_item_type = array(
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0=>'Product/Service', // * Line Charge Topic on Invoice.
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1=>'Hardware', // *
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2=>'Service Relocation Fee', // * Must have corresponding SERVICE_ID
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3=>'Service Change', // * Must have corresponding SERVICE_ID
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4=>'Service Connection', // * Must have corresponding SERVICE_ID
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5=>'Excess Usage', // * Excess Service Item, of item 0, must have corresponding SERVICE_ID
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6=>'Service Cancellation', // * Must have corresponding SERVICE_ID
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7=>'Extra Product/Service Charge', // * Service Billing in advance, Must have corresponding SERVICE_ID
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8=>'Product Addition', // * Additional Product Customisation, Must have corresponding SERVICE_ID
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120=>'Credit/Debit Transfer', // * SERVICE_ID is NULL, MODULE_ID is NULL, MODULE_REF is NULL : INVOICE_ID is NOT NULL
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124=>'Late Payment Fee', // * SERVICE_ID is NULL, MODULE_ID = CHECKOUT MODULE,
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125=>'Payment Fee', // * SERVICE_ID is NULL, MODULE_ID = CHECKOUT MODULE, MODULE_REF = CHECKOUT NAME
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126=>'Other', // * MODEL_ID should be a module
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127=>'Rounding', // * SERVICE_ID is NULL, MODULE_ID is NULL, MODULE_REF is NULL
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);
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/** REQUIRED ABSTRACT METHODS **/
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/** LOCAL METHODS **/
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/**
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* Module assocated with the invoice item
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*/
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private function _module() {
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if (! $this->module_id OR ! $this->module_ref)
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return NULL;
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return $this->module->instance($this->module_ref);
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}
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/**
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* Return the list of available item types
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*/
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public function _types() {
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return $this->_item_type;
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}
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/**
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* Add tax to our item
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*
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* @param Model_Country the country to get the tax rates
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* @param Boolean Is this price inc/ex tax
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*/
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public function add_sub_item(Model_Country $co,$taxed=FALSE) {
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$orig = $this->subtotal();
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$tax = 0;
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foreach ($co->tax->find_all() as $to) {
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$iito = ORM::factory('Invoice_Item_Tax');
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$iito->tax_id = $to->id;
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$iito->amount = Currency::round($taxed ? ($orig-$orig/(1+$to->rate)) : $orig*$to->rate);
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$tax += $iito->amount;
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$this->subitem_add($iito);
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}
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// If taxed, we need to reduce our base_rate to a pre-tax amount
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if ($taxed) {
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$this->price_base -= Currency::round($tax/$this->quantity,1);
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// If there is any rounding, we'll take it off the last IITO
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$iito->amount += $orig-$this->total();
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}
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}
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// The total of all discounts
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public function discount() {
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return Currency::round($this->discount_amt);
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}
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/**
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* Validate that this record is correct
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*/
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private function isValid() {
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switch ($this->item_type) {
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case 0:
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// @todo Validate if module_id = charge and module_ref corresponds with the line item
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if (! $this->service_id OR ! $this->product_id OR ($this->module_id AND $this->module_id != 30 AND ! is_null($this>module_ref)) OR $this->product_name OR is_null($this->recurring_schedule))
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return FALSE;
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break;
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case 1:
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if (! $this->product_id OR $this->module_id OR $this->module_ref OR $this->product_name OR ! is_null($this->recurring_schedule))
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return FALSE;
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break;
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// These items come from the charge module, so we should have a charge module_id and ref
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case 2:
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if (! $this->service_id OR ! $this->product_id OR ($this->module_id AND $this->module_id != 30 AND ! is_null($this>module_ref)) OR $this->product_name OR ! is_null($this->recurring_schedule))
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return FALSE;
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break;
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case 3:
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case 4:
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case 7:
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if (! $this->service_id OR ! $this->product_id OR ! $this->module_id OR ! $this->module_ref OR $this->product_name OR ! is_null($this->recurring_schedule))
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return FALSE;
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break;
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// These items come from the charge module, so we should have a charge module_id and ref
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case 5:
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if (! $this->service_id OR ! $this->product_id OR ! $this->module_id OR ! $this->module_ref OR $this->product_name OR ! is_null($this->recurring_schedule))
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return FALSE;
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break;
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case 124:
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if ($this->service_id OR $this->product_id OR $this->module_id OR $this->module_ref OR $this->product_name OR ! is_null($this->recurring_schedule))
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return FALSE;
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break;
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}
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// If we get here, assume it is valid
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return TRUE;
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}
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/**
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* Return an instance of the Model of this charge
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*/
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public function module() {
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return $this->_module();
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}
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public function name($variable=NULL) {
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if (! $this->isValid())
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return sprintf('Record Error [%s-%s]',$this->item_type,$this->id);
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if (is_null($variable) OR ! $variable instanceof Model_Language)
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$variable = Site::language();
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switch ($this->item_type) {
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case 0:
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case 2:
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case 3:
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case 4:
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case 5:
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return sprintf('%s: %s',$this->product->name($variable),$this->service->namesub($variable));
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case 124:
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return StaticList_ItemType::get($this->item_type);
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default:
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return sprintf('Unknown [%s-%s]',$this->item_type,$this->id);
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}
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}
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public function namesub($variable=NULL) {
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if (! $this->isValid())
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return sprintf('Record Error [%s-%s]',$this->item_type,$this->id);
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switch ($this->item_type) {
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case 0:
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return sprintf('%s: %s',StaticList_ItemType::get($this->item_type),$this->period());
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case 2:
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return sprintf('%s: %s',StaticList_ItemType::get($this->item_type),$this->_module() ? $this->_module()->display('date_charge') : $this->period());
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case 3:
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case 4:
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case 6:
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return sprintf('%s: %s',StaticList_ItemType::get($this->item_type),($this->_module()->attributes ? $this->_module()->namesub($variable) : $this->_module()->display('date_charge')));
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case 5:
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case 7:
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return $this->_module()->namesub($variable);
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default:
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return sprintf('Unknown [%s-%s]',$this->item_type,$this->id);
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}
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}
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// Display the period that a transaction applies
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public function period() {
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return ($this->date_start == $this->date_stop) ? Site::Date($this->date_start) : sprintf('%s -> %s',Site::Date($this->date_start),Site::Date($this->date_stop));
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}
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/**
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* Display the Invoice Item Reference Number
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*/
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public function refnum($short=FALSE) {
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return $short ? '' : sprintf('%03s-',$this->item_type).sprintf('%06s',$this->id);
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}
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public function save(Validation $validation = NULL) {
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// Our items will be clobbered once we save the object, so we need to save it here.
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$subitems = $this->subitems();
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// Save the invoice item
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parent::save($validation);
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// Need to save the associated items and their taxes
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if ($this->loaded()) {
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foreach ($subitems as $iito) {
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$iito->invoice_item_id = $this->id;
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if (! $iito->changed())
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continue;
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$iito->save();
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if (! $iito->saved()) {
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$this->active = 0;
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$this->save();
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break;
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}
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}
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} else
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throw new Kohana_Exception('Couldnt save invoice_item for some reason?');
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return $this;
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}
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// This total of this item before discounts and taxes
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public function subtotal($format=FALSE) {
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$result = $this->price_base*$this->quantity;
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return $format ? Currency::display($result) : $result;
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}
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// Sum up the tax that applies to this invoice item
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public function tax($format=FALSE) {
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$result = 0;
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foreach ($this->subitems() as $iito)
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$result += $iito->amount;
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return $format ? Currency::display($result) : Currency::round($result);
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}
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public function tax_items() {
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$result = array();
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foreach ($this->subitems() as $iito) {
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if (! isset($result[$iito->tax_id]))
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$result[$iito->tax_id] = 0;
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$result[$iito->tax_id] += $iito->amount;
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}
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return $result;
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}
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public function title(Model_Language $lo) {
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if (! $this->isValid())
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return 'Record Error';
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switch ($this->item_type) {
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case 0:
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case 2:
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case 3:
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case 4:
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return $this->product->name($lo);
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case 5:
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return $this->_module()->name($lo);
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case 124:
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return StaticList_ItemType::get($this->item_type);
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default:
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return 'Unknown';
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}
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}
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public function total($format=FALSE) {
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$result = ! $this->active ? 0 : $this->subtotal()+$this->tax()-$this->discount();
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return $format ? Currency::display($result) : Currency::round($result);
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}
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}
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?>
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